1. The quality of being arch.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• arness,
• arkness,
• lochness,
• archves,
• archies,
• itchness,
• achyness,
• areness,
• arsneus,
• archnese,
• archnesss,
• archnesse,
• archess,
• archnes,
• aarchness,
• arshness,
• muchnesse,
• anconees,
• archeresse,
• archress

• arching,
• arseneau,
• archangel,
• archenteron,
• archean,
• archine,
• arachnid,
• argonne,
• arcane,
• arsine,
• archangelic,
• archaean.

The adjective form of the word "archness" is "archly".

The plural of the "archness" can be the "archnesses".

The singular of the "archness" can be the "archness".